Method for Guaranteeing Operation of Control Message in Wireless Communication System and Device for Same

1. A method for ensuring processing of a control operation in a wireless communication system, the method being performed by a first machine to machine (M2M)/Internet of Things (IoT) device and comprising: transmitting a resource creation request for transmitting a control message instructing a control operation of a second M2M/IoT device to a third M2M/IoT device, the resource creation request including content of the control message, an indicator for requesting for ensuring processing of the control operation, or an identifier of the resource creation request; receiving a resource creation response in response to the resource creation request from the third M2M/IoT device; receiving a control result notification including a result of processing of the control operation according to the indicator from the third M2M/IoT device, the control result notification including the identifier of the resource creation request; and checking whether the content of the control message and content of the control result notification are the same.

2. The method according to claim 1 , wherein the indicator triggers creation of a subscription resource for enabling a notification of a change in a resource related to the control operation in order to ensure processing of the control operation.

3. The method according to claim 1 , further comprising applying the content of the control result notification to a status of the first M2M/IoT device when the content of the control message and the content of the control result notification are the same.

4. The method according to claim 1 , further comprising retransmitting the resource creation request to the third M2M/IoT device when the content of the control message and the content of the control result notification are not the same.

5. A method for ensuring processing of a control operation in a wireless communication system, the method being performed by a first machine to machine (M2M)/Internet of Things (IoT) device and comprising: receiving a creation request of a resource (hereinafter, referred to as “transfer resource”) for transmitting a control message instructing a control operation of a second M2M/IoT device from a third M2M/IoT device, the resource creation request including content of the control message, an indicator for requesting for ensuring of processing of the control operation, or an identifier of the resource creation request; creating the transfer resource according to the resource creation request; transmitting a resource creation response in response to the creation request of the transfer resource to the third M2M/IoT device; determining whether the indicator is present in the created transfer resource; when the indicator is present in the created transfer resource, creating a subscription resource for enabling a notification of a change in a resource related to the control operation in order to ensure processing of the control operation; upon receiving a creation request of a resource including a result of processing of the control operation from the second M2M/IoT device, creating the resource including the result of processing of the control operation; and transmitting a control result notification including the result of processing of the control operation according to the created subscription resource to the third M2M/IoT device.

6. The method according to claim 5 , further comprising: transmitting a notification message including content of the control message or the indicator and instructing the control operation to the second M2M/IoT device according to a pre-created subscription resource; and receiving, from the second M2M/IoT device, a creation request of a resource including the result of processing of the control operation according to the notification message.

7. The method according to claim 5 , wherein the indicator further indicates a creation request of a resource including the result of processing of the control operation to the second M2M/IoT device.

8. The method according to claim 5 , wherein the creating the subscription resource further comprises mapping an identifier of the resource creation request and the subscription resource.

9. The method according to claim 5 , wherein the creating the subscription resource further comprises limiting a number of the notification of the change in the resource related to the control operation to one.

10. The method according to claim 5 , further comprising, upon receiving a response in response to a transmission of the notification of control result including the result of processing of the control operation from the third M2M/IoT device, deleting the created subscription resource.

11. A machine to machine (M2M)/Internet of Things (IoT) device configured to ensure processing of a control operation in a wireless communication system, the M2M/IoT device comprising: a radio frequency (RF) unit; and a processor configured to control the RF unit, wherein the processor is configured to transmit a resource creation request for transmitting a control message instructing a control operation of a second M2M/IoT device to a third M2M/IoT device, the resource creation request including content of the control message, an indicator for requesting for ensuring processing of the control operation, or an identifier of the resource creation request, to receive a resource creation response in response to the resource creation request from the third M2M/IoT device, to receive a control result notification including a result of processing of the control operation according to the indicator from the third M2M/IoT device, the control result notification including the identifier of the resource creation request, and to check whether the content of the control message and content of the control result notification are the same.

12. The M2M/IoT device according to claim 11 , wherein the indicator triggers creation of a subscription resource for enabling notification of a change in a resource related to the control operation in order to ensure processing of the control operation.

13. The M2M/IoT device according to claim 11 , wherein the processor is configured to apply the content of the control result notification to a status of the first M2M/IoT device when the content of the control message and the content of the control result notification are the same.

14. The M2M/IoT device according to claim 11 , wherein the processor is configured to retransmit the resource creation request to the third M2M/IoT device when the content of the control message and the content of the control result notification are not the same.

15. A machine to machine (M2M)/Internet of Things (IoT) device configured to ensure processing of a control operation in a wireless communication system, the M2M/IoT device comprising: a radio frequency (RF) unit; and a processor configured to control the RF unit, wherein the processor is configured to receive a creation request of a resource (hereinafter, referred to as “transfer resource”) for transmitting a control message instructing a control operation of a second M2M/IoT device from a third M2M/IoT device, the resource creation request including content of the control message, an indicator for requesting for ensuring of processing of the control operation, or an identifier of the resource creation request, to create the transfer resource according to the resource creation request, to transmit a resource creation response in response to the creation request of the transfer resource to the third M2M/IoT device, to determine whether the indicator is present in the created transfer resource, to create a subscription resource for enabling a notification of a change in a resource related to the control operation in order to ensure processing of the control operation when the indicator is present in the created transfer resource, to create the resource including the result of processing of the control operation upon receiving a creation request of a resource including a result of processing of the control operation from the second M2M/IoT device, and to transmit a control result notification including the result of processing of the control operation according to the created subscription resource to the third M2M/IoT device.

16. The M2M/IoT device according to claim 15 , wherein the processor is configured to transmit a notification message including content of the control message or the indicator and instructing the control operation to the second M2M/IoT device according to a pre-created subscription resource, and to receive, from the second M2M/IoT device, a creation request of a resource including the result of processing of the control operation according to the notification message.

17. The M2M/IoT device according to claim 15 , wherein the indicator further indicates a creation request of a resource including the result of processing of the control operation to the second M2M/IoT device.

18. The M2M/IoT device according to claim 15 , wherein the processor is configured to map an identifier of the resource creation request and the subscription resource during creating the subscription resource.

19. The M2M/IoT device according to claim 15 , wherein the processor is configured to limit a number of the notification of the change in the resource related to the control operation to one during creating the subscription resource.

20. The M2M/IoT device according to claim 15 , wherein the processor is configured to delete the created subscription resource upon receiving a response in response to to a transmission of the notification of control result including the result of processing of the control operation from the third M2M/IoT device.